One of our danios has a name now, which is "Skellington". Because he's wasting away; he's little more than a skeleton with fins. He doesn't eat, just hovers in place or swims in sad little circles.
He was the one most harrassed by Normalzoid -- most of his tail was gone at one point, it's still not fully healed. And it probably won't, since he's not eating...
I keep expecting to find him motionless on the gravel.